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Gearbox Function Apr 11, 2020

(1) Change the transmission ratio, expand the change range of the drive wheel torque and speed to adapt to the constantly changing driving conditions, and at the same time make the engine work under favorable (higher power and lower fuel consumption) working conditions;

(2) Under the condition that the rotation direction of the engine is unchanged, the car can be driven backward;

(3) Use neutral to interrupt power transmission, so that the engine can start and shift, and it is convenient for the transmission to shift or output power.

(4) The transmission is composed of a variable-speed transmission mechanism and a control mechanism. If necessary, a power take-off can be added. There are two ways in classification: according to the change of transmission ratio and according to the difference of operation mode.